Virgin, heat-resistant, medical-grade polypropylene plates RNase, DNase & pyrogen free Minimal binding & liquid retention Black printed alpha-numeric reference grids U (round) bottoms Dimensions: 5.03" L x 3.37" W x 1.3" Hgt. Autoclavable; Sterile plates are sterilized by gamma irradiation in accordance with ISO 13485 Temperature range: -86°C to 82.2°C Our deep well plates are compatible with all popular automated research platforms and robotic equipment. The plates are useful for bacterial cultures, centrifugation (up to 4000 x g), and general sample storage. All plates are produced in a class 100,000 cleanroom facility and are ANSI/SLAS 1-2004 compliant. They can be used with silicone sealing mats and sealing films of various materials (sold separately).